22212721222 has 16 divisors (see below), whose sum is σ = 33679501632. Its totient is φ = 10986336000.

The previous prime is 22212721217. The next prime is 22212721243.

22212721222 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372472 + ... + 427972.

It is an arithmetic number, because the mean of its divisors is an integer number (2104968852).

Almost surely, 2^22212721222 is an apocalyptic number.

22212721222 is a deficient number, since it is larger than the sum of its proper divisors (11466780410).

22212721222 is a wasteful number, since it uses less digits than its factorization.

22212721222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57663.

The product of its digits is 1792, while the sum is 25.

The spelling of 22212721222 in words is "twenty-two billion, two hundred twelve million, seven hundred twenty-one thousand, two hundred twenty-two".